spi: bcm63xx-hsspi: fix missing clk_disable_unprepare() on error in bcm63xx_hsspi_resume

[ Upstream commit 9bb9ef2b3e5d9d012876e7e2d7757eb30e865bee ]

Fix the missing clk_disable_unprepare() before return
from bcm63xx_hsspi_resume in the error handling case when
fails to prepare and enable bs->pll_clk.

Fixes: 0fd85869c2a9 ("spi/bcm63xx-hsspi: keep pll clk enabled")
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20201103074911.195530-1-miaoqinglang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/spi/spi-bcm63xx-hsspi.c b/drivers/spi/spi-bcm63xx-hsspi.c
index 9909b18..1f08d75 100644 (file)
--- a/drivers/spi/spi-bcm63xx-hsspi.c
+++ b/drivers/spi/spi-bcm63xx-hsspi.c
@@ -494,8 +494,10 @@ static int bcm63xx_hsspi_resume(struct device *dev)
 
        if (bs->pll_clk) {
                ret = clk_prepare_enable(bs->pll_clk);
-               if (ret)
+               if (ret) {
+                       clk_disable_unprepare(bs->clk);
                        return ret;
+               }
        }
 
        spi_master_resume(master);